Why don't you just create a Graphic Style for each fill/stroke combination you need to repeat?
If you must have a keyboard shortcut by which to apply the Style(s), record an Action that applies a style, and assign a keyboard shortcut to the Action.
If you want to change the default style so that pressing D assigns the fill/stroke Appearances you want, you can edit the Default Style by AltDragging a path that has the desired Appearances and dropping it onto the Default Graphic Style. If you want that to be the Default Style in all new documents, edit the startup files and templates the same way.
JET